Build GDB as a C application

Due to STAR 9001066513 GDB crashes when throwing an exception.  Due to a poor
design GDB uses exceptions as a part of a normal execution flow to verify user
input (for example it throws exception when file path is invalid or when typed
symbol doesn't exist).  Therefore for 2016.09 release it is required to disable
build of GDB as a C++ application.  This will not work for future releases,
because GDB will stop supporting C builds.

Signed-off-by: Anton Kolesov <[email protected]>

Author: anthony-kolesov

build-uclibc.sh

@@ -666,8 +666,16 @@ if [ $DO_NATIVE_GDB = yes ]; then
 
     build_dir_init native_gdb
 
+    # Due to STAR 9001066513 GDB crashes when throwing an exception.  Due to a
+    # poor design GDB uses exceptions as a part of a normal execution flow to
+    # verify user input (for example it throws exception when file path is
+    # invalid or when typed symbol doesn't exist).  Therefore for 2016.09
+    # release it is required to disable build of GDB as a C++ application.
+    # This will not work for future releases, because GDB will stop supporting
+    # C builds.
     config_path=$(calcConfigPath "${ARC_GNU}")/gdb
     configure_for_arc "$config_path" $triplet \
+	--disable-build-with-cxx \
 	--disable-gas --disable-ld --disable-binutils
     make_target building
 
@@ -681,6 +689,7 @@ else
     build_dir_init gdbserver
     # Static options are same as when gdbserver is configured by the top-level
     # configure script.
+    # See commment for native GDB about build-with-cxx.
     config_path=$(calcConfigPath "${ARC_GNU}")/gdb/gdb/gdbserver
     LDFLAGS="-static-libstdc++ -static-libgcc" \
 	configure_for_arc "$config_path" $triplet --disable-build-with-cxx